CPM Homework Help : CC1MN Problem 10-10

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10-10.

Calculate each of the following quotients.

$7 \frac { 1 } { 4 } \div \frac { 3 } { 8 }$
Hint 1 (a):
Begin by rewriting the mixed number as a fraction greater than one.
Show Step 1 (a):
$7\frac{1}{4}\div\frac{3}{8}=\frac{29}{4}\div\frac{3}{8}$
Hint 2 (a):
Calculate the quotient by multiplying by the multiplicative inverse.
Show Step 2 (a):
$\frac{29}{4}\div\frac{3}{8} = \frac{29}{4}\cdot\frac{8}{3}$
Hint 3 (a):
Carry out the multiplication and then reduce the fraction to its simplified form.
Answer (a):
$\frac{58}{3} = 19\frac{1}{3}$

$9.82\div0.2$

Hint (b):

Solve through regular long division. Don't forget to count the decimal places and move the decimal point in the quotient!

$9 \frac { 9 } { 10 } \div 4 \frac { 4 } { 5 }$
Hint (c):
Follow the process outlined in part (a).

Compute without a calculator

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